What does science contribute to vocational education and training (VET) in practice? How should projects, programmes, and political strategies be further developed? The aim of evaluation, design research, and impact research is to analyse conditions for the development of projects, programmes, pilot projects, or system reforms. Implementation processes are accompanied systematically and in a researchled manner. Effects of interventions are identified and attributed to their causes. The VET research network (AG BFN) dedicates this volume to evaluation and impact research in VET. New trends, concepts, and methods are addressed.

Reinhard Stockmann works at the Centrum für Evaluation (CEval) in Saarbrücken in Germany Hubert Ertl works at the Bundesinstitut für Berufsbildung (BIBB) in Bonn in Germany